A police dog tracked the crook's scent across the street and investigators arrested Joshua Martell, 28.

Singh says Martell is a frequent customer.

"I'm not mad. I just say, 'Why?'" he said.

Police don't recommend refusing an armed robber, but the power grandma and grandpa said they'd do the same thing if it happened again.

"If you're scared, it's happening everyday like this, you know?" said Singh, explaining that he doesn't want any more people thinking they can try to rob his store.

Kaur admitted she was shaking after the incident but said she didn't feel scared during the robbery.

"I'm brave," she said, laughing.

Her son tells WPTZ he's glad his parents are OK, but hopes they never do refuse a man with a weapon again. He predicts he's had the surveillance system for about 7 years and never used it until this incident.

Martell was jailed on $15,000 bail. Police said they found stolen property in his pocket from a recent burglary.